Cub Cadet 8454, Service Manual

Page: 84 / 334

CHAPTER 2 8454
2-62 D569-W02 May-2003
569W2C2A
569W2C0A
F. COOLING SYSTEM
a . Checking Adjusting
(A) Fan belt
1. Measure the deflection, by depressing the belt half-
way between the fan drive pulley and the alternator
pulley at 98 N (10 kgf, 22 lbs) of force.
2. If the deflection is not between the factory specifica-
tions, loosen the bolts and nuts, and relocate the
alternator to adjust.
3. If the belt is damaged or worn (see figure), replace
the belt.
(B) Radiator water tightness
1. Fill the radiator with water to the specified amount
and warm up the engine.
2. Set a radiator tester and raise the water pressure to
the specified pressure.
3. Check the radiator for water leaks.
4. For water leaks from a pin hole, repair it with radia-
tor cement, and for larger leaks, replace the radiator.
(C) Radiator cap tightness
1. Set a radiator tester on the radiator cap.
2. Apply 88 kPa (0.9 kgf/cm
2
, 13 psi) of pressure and
measure the pressure for 10 seconds.
3. If the pressure falls below 59 kPa (0.6 kgf/cm 2 , 9
psi),replace the radiator cap.
Belt
tension
(direction) Factory
spec
7 ~ 9 mm
0.28 ~ 0.35 in.
at 98 N (10 kgf, 22 lbs)
of force
Radiator
water
tightness Factory
spec
No leaks at 137 kPa
(1.4 kgf/cm 2 , 20 psi)
Radiator
cap
tightness Factory
spec
more than 10 seconds
for pressure fall
from 88 ~ 59 kPa
(0.9 ~ 0.6 kgf/cm
2
, 13 ~ 9 psi)
569W2C1A
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